Pipe-finishing mechanism



Dec; 7, 1926. 1,610,198 l R. R. BURCH v PIPE FINISHING MECHNISM FiledAugust 12, 1922' 5 Sheets-Sheet 1 O O Il Y hm ww Q v O Q MK Y l h\\ ubww 1|| l V a Qfwekzf: WAM/'1? @W4 @f M@ was,

Mil WJ R. R. BURcl-l PIPE FINISHING MECHANISM Dec. 7 1926. 1,610,198

Filed August 12, 1922 5 Sheets-Sheet 2 Dec., 7, 192s. 1,610,198

R. R. BURcH PIPE FINISHING MECHANISM Filed August 12, 1922 l 5sheets-sheet s Dec.' 7, 1926. 1,610,198

R. R. BURCH PIPE FINISHING MECHANISM ,Filed August 12, 1922 5sheets-sheet 4 Dec. 7 1926. 1,610,198

R. R. BURCH PIPE FINISHING MECHANISM Filed'August 12, 1,922 5sheets-sheet 5 i Patented Dec. 7;

` Pre-EAFINESEING vi/meenam;

Application l fii1ed` August S172, T1922. f nlerial @105:5313432;

',My zinyeutionvrelates vto ,improvements in v {jee-,ts the production.of :a :Iuehzinism .of .the kind deseribed 1'which is simple, durablqre--liable,.efieientfend .satisfactory for .use

Yu'ffherever.found ,applicable Many other `ich] LIn the drawings,wherein like Vfreferenlce,

' leharaeters '.jincli'cate like or Cor-resp.C )Ifflillgl vseetion1an-clpartlyiinelexzatien;,v

finishedg Fig. .Slis afne'enlfelevatienipithe same with -a portionxthereei fybrekenwwey.; e

Fig 4 is 1a section takenesubtantilly vQn the line k-uifo- Eig;

Vention, there is shoWnfa/doubl @Eiingfmw .iehineonmpairtfoiwhihisgcpnipletely ehovivnv fand l'hut z-a iregmenft of thel-other, shown,

fbut as the i parts are Simi-:Ear it will E bei neeessary to .fde'seribe`@Inl-y.-oneo-the!duplexipints of itwhereinfifiindicstsealengtlrfaupifle gto .be armed vinto nipple, preferably e Y ects ganfcl.lf:tdi/,211itge's;,io'f. fthe ,construetionherein l.shown mid describedVwill benobvious itohoselskilled vin the emit.

,threaeled "hothnds '.,thereef, asiat yank] i Y hevinfg ahQneBtherethrough. -These shert "lengthslppipxe as .they ayre cut; from thesteek `fare4 generllyvfounfd to have lhurts, ,4'

more easily, 'heymustfalse-)he Chamfterjed i at' their Outer ends, neetI6.

' Y ltha'slheretefore been ',.to tifo? theseylefal. Qperations olffi'nishingqthe VIiipplgtht, is,V theremingjfthreacling,.and Yeliainferirig, either singly ror `Joy combining 'two f the operationsateneftimebut inrv .anyvimprevedpmechanisih.- ill Lthree 'f rthe eunison Q penatiqnsf i are lautolnticlly t per-formed in a 4pipehelding.device ,is sli'dably. haunted v and".thepipehelliug vdevice is provided.ing,`.the`..henel wheel/Tite :feedjthe pipergto fthe4 Yenighmg-ti0g1s.hereinafter de efibeegrhe A hand Wheel :7 is constrainedtorotete `with Aaf- :Wliich meshes "with thel .rank1v @the fin-achilleso esgjzcwbe rotatably driven; A

gli), .Wliihfis .iqperted 'byeny .suitable means ,Threaded ,uppn ,oneendnQfthe Ksleeve -9 isla pmnlsa ,fadaLpteidqto-- cerny, parte e,whichf,-. inf) turn, ,Garry thread .-:Cultiiingymembers 18"; #the ing`identifieil'hythe A,reference character 8d.

Ay pair of bent lpostslc are associated with each part 8 Yand thearrangement is such'that ify the part 8 is moved away from the part Bathe parts 8 will withdraw from each other.k

In a like manner, if the part 8 is Ymoved toward the part 8f", the posts8 will cause the Y V,parts 8 to move into their functionally op- I ingdie.

erative positions.

A tool 11 preferably of a rectangular cross section and provided withreaming edges 12 and chamferingedges 13 isV arranged at theV lrear sideofY the die to engage the end of a nipple fed thereto, said combinedreaming Vand chamfering tool being preferably ,removably connected to apart 12 that is rotatably driven in unison with the thread- The meansfor drivingly connecting the bar 12 to the driving gearV 10 comprises aplate or disk 13 keyed to one end 2, of the'bar '12 and mounted adjacentthe plate 14 Vsecured to the hub yof the gear 10, there `being pins 15projecting from the plate 14 and insertable through openings in the-plate 13. so thatv when the plate 14 is rogroove (Fig. 6). Y

able withr respect to thecam groove and 1s tated the plat-e 13 Vwill bedriven thereby throughthe pins 15.v

. The plate 14 is connected to the hub of the gear 10 so -as tobe'rotatably adjustable, as shown in Fig. 3. rllhis ladjustment issecured by providing arcuate slots 16 in the plate 14 throughwhich areadjustably inserted screws or bolts 17, threaded into Vthe vhub of thegear 10. Bushings 18 are provided vwithin the sleeve 9 to `form'bearings 1 lfor the bar 12.V Y j A ,Y As hereinbefore explained the dieparts 8 and 8 are axially separable to cause the dieV parts 8 to open orclose onto the pipe. 'The diev part 8 is provided with a cam) groove 19adapted to be engaged by a pin 20. which is normally out of engagementwith the cam The pin is radially movnormally held inA an` inoperativeyposition .f by a spring-pressed rod 21 arranged laterally thereto.

A spring22 tends to press the pin 2() into the cam groove 19.` rl`he rod21 is slidable relative to the pin 2O in a Vdirectien transverselythereof so as to vrelease said ppinvwhenever the rod 21 is moved awaytherefrom, the sliding movement of the lrod 21 being limited Vby a keyand key-way 23. It will be seen that as soon as the rod 21 is moved tothe left (Fig. the pin 2O will be l' released from engagement with saidrod and will be pressed upwardlyvby the spring22 to moveV intothe camgroove 19 to open the4v die parts 8 and release these die parts from4operative engagement with the nipple. A lug or projection 24 arrangedata suitable point in the cam groove-19 is adapted to press the pin 2Odownwardly to its inopera- A tive position, as shown in Fig. 6,whereupon the spring-held rod 21 will again latch the v pin in itsinoperative position.

. In order to automatically close theV dies to receive a'nipple beingfed thereto, an arm 25 (Figs. 1, 2,75 and 6) carrying a roller 26 toengage against part 8 of the die having a cam groove 1.9 therein,ispivoted at 27 to the bed plate, (Fig. 1) said arm 25 adaptedV to beactuated at its free end by a rod 28 fastened to the movable pipeholding Vcircling said bar, but engageable against tlieofplate l'carriedby said bar. This arm 29 is pivoted at'one end, as Vat 30, the othei endconnected to a rod 31 so. that-as the arm 29 is actuated about its pivot3() by the disk 13 carried-by the'rod ,12, it will actuate the rod 31.

Aspring 32l is interposed between the rodi 31 and a stationary part ofthe mechanismV to yieldably resist the movement of therod 31 and toreturn said rod to its normal position after such movement. The otl'ierend ofthe rod 31 is connected to pivoted lever 38, having a cam 34engageable with a-Vcooperatmg cam surface att-he outer end of: the rodr21, so

that asthe lever 33 is pivoted the cam snrfaces 34r and 35 willcooperate to move'th'e krod 21 to release the loam member 20.

YIt is believed that the operation ofthe device'willbeclear fromthe-disclosures just given, this operation being as follows:

' The nipple is clamped in place in the member 4 and is fed by hand tothey die parts 8, this feeding movement causing the. rod

28 to move-,the arm 25 to close the dies.

As soon as the Vnipple reaches the closedV dies the continued rotationof the Vrdies in engagement with the nipple' will automatically feed thenipple thereinto until the inner end of the nippleis engaged by thereaming and l. chainfering tool; and is 'completely reamed andchamfered. This tool is slidable axially relative to the die, thesliding movement being vresisted by the spring 32.' As` soon as thenipple has reached a predetermined point, Vor is finished, the arm 29-ispivoted about the point 30 to pull the rod 31 outwardly, pivot the lever33 to pull the arm 21 outwardly and release it fromv its engagement withthe pin 20', which there-Vv upon engages in the cam groove 19 toVseparate the rdies from Vtheir operative engagement with the nipple. Y

As soon as the die Vhas rotated through one revolution after itsrelease, .the projection 24 vengages the pin 20, moving it Vtoitslatched normally inoperative position. Thus it is seen that thethreading, reaming and chamfering operations are performed in uni-VYson'and that these operations cease at a pref, determined point, to berepeated again as'V soon as afresh nippleis fed tothe dies. Having thus`described my invention, itis obviousV that various immaterial modifica-,tioiismay'be 'made inthe same Without departing from the spirit; of myinvention;

I tioned.

hence I do not wish to be understood as limiting myself to the exactform, construc tion, arrangement and combination of parts herein` shownand described or uses men- `What I claiinas'new` and desire to secure byLetters Patent is:

l. In a device of the threading die radially movable to open or closeupon the pipe, a reaming andchamferlv ing tool, a cam operative forcontrolling;

said die, a pivoted arm adapted to'be vactu- V ated by said tool, a rodconnectedwith said v armya spring engageable withV said rod to resistits actuation by said arm, saidcamy controlled by said rod to openl saiddie at a predetermined point, and means for automatically closing saiddie when the next pipe to be nis'hedis fed' toward said open die.

d 2. In ardevice of the kind describedand in combination, means forvreleasably engaging` a pipe nipple therein and feedingit, a rotary.threading die adapted to close to lthread said A. nipple, a rotarychamfering', and reaining tool to engage said nipple, means foroperatively-connecting said tool'and die to simultaneously engage thenipple, meansl for adjusting said connecting means, a pivoted armengageable by said tool, spring meansfor yieldingly resisting themovement of, Said arm, a cani controlling tlieopening and closing ofsaid die, arcam member adapteditoVV cooperatively'engage said cam" andnormally said die.

'3, In a device ofv rout of engagement therewith, means auto#v maticallyVoperatedb'ysaid tool When the nipple is finishedto release said cam'member to engage said cam and open said die,

an arm engageablewith said cam, and means operated by Vthe feedingmovement of the feedingmeans for moving saidV arm to closeincombination, pipe feeding means, a rotary l kind described andincombination, pipe feeding means, a rotary 1 automatically closing saiddie.v

- signedv my name. i

the kind described and tool, va camoperable Vby the vmovement of saidtool forcontrolling the releasing of said die 'fronivsaid pipe,and'means controlled by' Vsaid pipe feeding means for closing said die..

4:, Ina device ofthe kind described and threading radially movable to`open orV I fclosevupon'a pipe, a'reaming and chamfe'ring incombination, ,pipeA feeding-means, a

threading die, a" reaming Y and chamfering tool, a vca in onsaiddie `andcontrolling the operation thereof, an Varmadapted to beactuated by saidtool, 'a rod'operated through said .tool and controlling said cam toopen l said ydiejat a predet'erminedpoint, and means controlled'by saidpipe" feeding means 4for .automaticallyV closing saidl die'.V

5. "In a device of lie kind described and combination, .pipe vfeedingmeans, a rotary threading die movable V,to open or close upon,v

said pipe, ja v'rea-nflingand chamfering.toolgfV arm operatedV by saidtool, a rod connected with said cam to,v open said die at ajprede 'Ytermined point, andm'eans operated by said pipe feeding means When thenext pipe to f 6. In'a'devicejof the kind in combination, means forreleasably engag-V inga pipe nipple therein and feedingrit, a

threading die adaptedto close to thread said nipple, a chamfering andreaming tool adapted to vengagesaid nipple, means 'for v operativelyconnecting said tool and die to simultaneously engage said nipple, apivoted V'arm operable by said tool, spring means, for

yieldably're'sisting. yfthe movement of said arm, a cam".controllinglthe openingpof said die, a cam member cooperativelyengagingY a cam' operative for controllingsaid'die, an

described and v v n eoY said cam,means for-normally holding said n cammember outl of engagement 'With said cam, means Vautomatically operatedby said tool when the nipple is finished 'to release said cam holdingmeans, an larm engageabl'e vvithsaid die, and means operated by thefeeding movementof said feeding means lfor l moving said armto closesaid die.

In testimony Wheieof,fI"' have hereunto 1 A'no'isiifiifri nf nunon.

